Advantech SOM-A2552 manual PXAGP81, PXAGP82, PXAGP83, PXAGP84

Models: SOM-A2552

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User’s Manual for Advantech SOM-A2552 series module V1.00

 

 

 

Advantech default function is used

 

 

 

 

as external 16C954 solution IC IRQ.

 

 

 

 

The pin directly connects to PXA255

 

B44

C954_IRQ

I

GPIO32 (A16 pin). If user doesn’t

No pulling

 

 

 

design 16C950 on CSB to expand

 

 

 

 

COM function, user could use this

 

 

 

 

pin as GPIO.

 

 

 

 

 

 

 

 

GPIO pin. The pin directly connects

 

A44

PXA_GP81

IO

to PXA255 GPIO81 (F16 pin). This

No pulling

 

 

 

GPIO pin is available for user to use.

 

 

 

 

GPIO pin. The pin directly connects

 

B45

PXA_GP82

IO

to PXA255 GPIO82 (E16 pin). This

No pulling

 

 

 

GPIO pin is available for user to use.

 

 

 

 

GPIO pin. The pin directly connects

 

A45

PXA_GP83

IO

to PXA255 GPIO83 (E15 pin). This

No pulling

 

 

 

GPIO pin is available for user to use.

 

 

 

 

GPIO pin. The pin directly connects

 

B46

PXA_GP84

IO

to PXA255 GPIO84 (D16 pin). This

No pulling

 

 

 

GPIO pin is available for user to use.

 

 

 

 

Static chip selects. Chip selects to

 

 

 

 

static memory devices such as ROM

 

 

 

 

and

Flash.

 

Individually

 

 

 

 

programmable

in

the

memory

 

 

 

 

configuration registers. nBUF_CS1

Pull high

A46

nBUF_CS1

O

can be used with variable latency I/O

with

 

 

 

devices. Advantech default uses this

100Kohm

 

 

 

pin as storage flash chip select pin. If

 

 

 

 

no special

application,

Advantech

 

 

 

 

strongly suggest user to open this

 

 

 

 

pin in CSB.

 

 

 

 

 

 

 

 

 

Static chip selects. Chip selects to

 

 

 

 

static memory devices such as ROM

 

 

 

 

and Flash. Individually. nBUF_CS4

 

 

 

 

can be used with variable latency I/O

 

 

 

 

devices.

 

 

 

 

 

Pull high

 

 

 

Advantech

default

use this pin

as

B47

nBUF_CS4

O

with

companion chip chip select pin.

 

 

 

100Kohm

 

 

 

nBUF_CS4

pin

is

used

for

 

 

 

 

EVA-C210

on SOM-A255F &

 

 

 

 

SOM-A2552 series. If no special

 

 

 

 

application,

Advantech

strongly

 

 

 

 

suggest user to open this pin in CSB.

 

 

 

 

Static chip selects. Chip selects to

 

 

 

 

static memory devices such as ROM

 

 

 

 

and Flash. Individually

 

 

Pull high

 

 

 

programmable

in

the

memory

A47

nBUF_CS3

O

with

configuration registers. nBUF_CS3

 

 

 

100Kohm

 

 

 

can be used with variable latency I/O

 

 

 

devices.

 

 

 

 

 

 

 

 

 

Advantech

uses

the pin as

I/O

 

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Advantech SOM-A2552 manual PXAGP81, PXAGP82, PXAGP83, PXAGP84